MAX25208ATPA/VY+ Analog Devices

Click here to ask about the production status of specific part numbers. MAX25206/MAX25207/ Versatile Automotive 60V/70V 2.2MHz Buck MAX25208 Controller with 7A I and Optional Bypass Q Mode General Description Benefits and Features The MAX25206/MAX25207/MAX25208 are automotive Meets Stringent Automotive OEM Module Power 2.2MHz synchronous step-down controllers with 7A I . Consumption and Performance Specifications Q These devices operate with an input voltage supply from 7A Quiescent Current in Skip Mode 3.5V to 60V (MAX25206/MAX25207) and 70V Fixed 5.0V/3.3V or Adjustable 0.7V to 20V Output (MAX25208). They can operate in drop-out condition by 1.5% Output-Voltage Accuracy for 5V Fixed running at 99% (typ) duty cycle. These controllers are in- Setting tended for applications with mid- to high-power require- Enables Crank-Ready Designs ments that operate at a wide input voltage range such Wide Input Supply Range from 3.5V to 60V/70V as during automotive cold-crank or engine stop-start con- EMI Reduction Features Reduce Interference with ditions. The MAX25207 has an optional bypass mode, Sensitive Radio Bands without Sacrificing Wide Input which allows 100% high-side switch on until step-down Voltage Range function is needed during automotive transients. 50ns (typ) Minimum On-Time Allows Skip-Free The MAX25206/MAX25207/MAX25208 step-down con- Operation for 3.3V Output from Car Battery at trollers operate at a frequency up to 2.2MHz to allow small 2.2MHz external components, reduced output ripple, and to elim- Spread-Spectrum Option inate AM band interference. The switching frequency is Frequency-Synchronization Input resistor adjustable (220 kHz to 2200 kHz). SYNC input Resistor-Programmable Frequency Between programmability enables three frequency modes for opti- 220kHz and 2.2MHz mized performance: forced fixed-frequency operation (FP- WM), skip mode with ultra-low quiescent current, and syn- Integration and Thermally Enhanced Packages Save chronization to an external clock. The IC also provides Board Space and Cost SYNCOUT output to enable two controllers to operate 2.2MHz Step-Down Controller in parallel. The MAX25206/MAX25207/MAX25208 have a 180 Degrees Out-of-Phase SYNCOUT Output for pin-selectable spread-spectrum option for frequency mod- Synchronization ulation to minimize EMI. Current-Mode Controller with Forced-Continuous and Skip Modes The MAX25206/MAX25207/MAX25208 feature a PGOOD Thermally Enhanced 20-Pin Side-Wettable (SW) monitor and undervoltage lockout. Protection features in- 4mm x 4mm TQFN-EP Package clude cycle-by-cycle current limit and thermal shutdown. These controllers are specified for operation over the Protection Features Improve System Reliability -40C to +125C automotive temperature range. Supply Undervoltage Lockout Output Overvoltage and Undervoltage Monitoring Applications Overtemperature and Short-Circuit Protection Infotainment Systems -40C to +125C Grade 1 Automotive Temperature 48V Systems Range General Purpose Point of Load (POL) Ordering Information appears at end of datasheet. 19-100800 Rev 0 8/20COMP PGOOD BIAS AGND MAX25206/MAX25207/ Versatile Automotive 60V/70V 2.2MHz Buck MAX25208 Controller with 7A I and Optional Bypass Mode Q Simplified Block Diagram V OUT -OR- L R CS V I*(R +R +R ) BAT DS DCR CS V BAT C OUT CBST PGND SUP C IN CS EN OUT MAX25206/7/8MAX25206/7/8 FSYNC FB SYNCOUT FOSC R FOSC R C CBIAS C F C C www.maximintegrated.com Maxim Integrated 2 ENBK (MAX25207 ONLY) DH BST LX DL